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Finding the Fourth Proportional to 172,826.40, 259,239.60 and 48,167.40

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Solution

The fourth proportional to 172,826.40, 259,239.60 and 48,167.40 is: 72,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,826.40 : 259,239.60 = 48,167.40 : x
  2. Step 2: Convert to fraction form
    172,826.40/259,239.60 = 48,167.40/x
  3. Step 3: Cross multiply
    172,826.40x = 259,239.60 × 48,167.40
  4. Step 4: Simplify right side
    172,826.40x = 12,486,897,509.04
  5. Step 5: Solve for x
    x = 12,486,897,509.04/172,826.40
  6. Step 6: Final answer
    x = 72,251.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.